<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
   
    <div  id="app" >
    <h2 v-text="message+'!'">北京</h2>
    <h2 v-text="info+'!'">北京</h2>
    <h2>{{message+'!'}}北京</h2>
    </div>
     <!-- 开发环境版本，包含了有帮助的命令行警告 -->
  <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  <script>
var app=new Vue({
    el:"#app",
    data:{
        message:'hello vue',
        info:'lisa'
    }
})
  </script>
 
</body>
</html>